Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2009SILVERADO 2500 2WD V8-6.6L DSL TURBOREPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - POWERTRAIN MANAGEMENTRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULETESTING AND INSPECTION
2009 Chevrolet Silverado 2500 2WD V8-6.6L DSL Turbo
Engine Control Module: Testing and Inspection
2009 Chevrolet Silverado 2500 2WD V8-6.6L DSL TurboSECTION Testing and Inspection
Engine Control Module Programming and Setup (W/RPO LMM)
The following service procedures require either a programming or a setup event performed for a complete repair.
ECM Replacement
If the engine control module (ECM) is replaced, the following procedures must be performed:
1. Capture the Option data.
Important: Clear any DTCs that may have set after completing the programming procedure.
2. Enable ECM Reprogramming-Refer to Service Programming System (SPS) (Programming and Relearning) .
3. Restore the Option data in the new ECM.
4. Start and idle vehicle.
5. Using the scan tool, perform the Turbocharger Learn Procedure. Refer to Turbocharger Learn (Programming and Relearning) .
6. Perform a Diesel Particulate Filter (DPF) Regeneration Enable (Diesel Particulate Filter (DPF) Regeneration Enable) .
7. If necessary, perform the following:
* Theft Deterrent-Refer to Theft Deterrent Control Module Programming and Setup (Programming and Relearning) .
* The Fuel Injector Flow Rate Programming-Refer to Fuel Injector Flow Rate Programming (Service and Repair) .
* Engine Oil Life Remaining-Use scan tool to reset Engine Oil Life.
* Fuel Filter Life-Use scan tool to reset Fuel Filter Life.
ECM Reprogramming
Important: It is necessary to record Fuel Filter Life before reprogramming. The ECM reprogramming procedure will reset Fuel Filter Life to zero.
1. Record Fuel Filter Life.
Important: Clear any DTCs that may have set after completing the programming procedure.
2. Enable ECM Reprogramming-Refer to Service Programming System (SPS) (Programming and Relearning) .
3. Reset Fuel Filter Life to the recorded value.
4. Start and idle vehicle.
5. Using the scan tool, perform the Turbocharger Learn Procedure. Refer to Turbocharger Learn (Programming and Relearning) .
6. Perform a Diesel Particulate Filter (DPF) Regeneration Enable (Diesel Particulate Filter (DPF) Regeneration Enable) .
7. If necessary, perform the following:
* Theft Deterrent-Refer to Theft Deterrent Control Module Programming and Setup (Programming and Relearning) .
* The Fuel Injector Flow Rate Programming-Refer to Fuel Injector Flow Rate Programming (Service and Repair) .
* Engine Oil Life Remaining-Use scan tool to reset Engine Oil Life.
Setup for Component Replacement
The replacement of some components will require a setup procedure for complete repair.
If any of the following components are replaced, a Turbocharger Learn Procedure must be performed.
* Turbocharger
* Turbocharger Vane Position Sensor
* Turbocharger Vane Position Control Solenoid Valve
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.